sync of the placeholder apps is broken

[richfitz]

rich@fi--didelx04:~/shiny_dide$ ./scripts/sync_server 
shiny_dide_applications
shiny_dide_logs
Synchonising 'typochallenge'
sending incremental file list

sent 411,046 bytes  received 1,674 bytes  825,440.00 bytes/sec
total size is 256,572,564  speedup is 621.66
Synchonising 'eppasmviewer'
sending incremental file list

sent 1,584,219 bytes  received 5,765 bytes  635,993.60 bytes/sec
total size is 3,005,947,041  speedup is 1,890.55
Synchonising 'polici'
sending incremental file list

sent 465,935 bytes  received 2,036 bytes  935,942.00 bytes/sec
total size is 470,939,723  speedup is 1,006.34
Synchonising 'seasonal_hrp2'
sending incremental file list

sent 799,145 bytes  received 2,970 bytes  534,743.33 bytes/sec
total size is 1,159,782,639  speedup is 1,445.91
Synchonising 'fitr'
sending incremental file list

sent 393,654 bytes  received 1,472 bytes  790,252.00 bytes/sec
total size is 189,084,610  speedup is 478.54
Synchonising 'hello'
Error in remotes::parse_github_repo_spec(app$spec) : 
  Invalid git repo specification: 'hello'
Calls: local ... sync_server -> sync_app -> application_source_path -> <Anonymous>
Execution halted